Exercise book,48sheets,167mmx219mm, used for writing letters,144pcs/box1. ... material for cover 3,50,70,80,100gsm woodfree paperexercise book / Note bookhard cover notebook, spiral notebook, exercise book1) ... pages(60gsm,80gsm,90gsm,100gsm)3) other details: 20 sheets, 40sheets,60sheets,80sheets,120sheets and so on, your special ... lamination,UV,stamping and others as your want note book exercise book